More cards in this set

Card 6

Front

What do Lichens do?

Back

Preview of the front of card 6

Card 7

Front

How do we know that water is polluted?

Back

Preview of the front of card 7

Card 8

Front

What do pyramids of biomass show?

Back

Preview of the front of card 8

Card 9

Front

What do green plants and algae do to the suns light energy and when does this happen?

Back

Preview of the front of card 9